1.Determination of Residual Solvents in Rupatadine Fumarate by Headspace Gas Chromatography
Xiaolei SHI ; Hanhan LIU ; Jing WU ; Xinxiu FANG ; Renjie SONG
China Pharmacist 2016;19(5):1024-1025,1026
Objective:To determine the content of cyclohexane, ethyl acetate, methanol, methylene chloride and trichloromethane in rupatadine fumarate by headspace gaschromatography. Methods:A DB-WAXETRR capillary column(30 m × 0. 32 mm,0. 25 μm)was used and the carrier gas was nitrogen. The detector was an FID and the inlet temperature was 200℃ . The column temperature program was with the initial temperature of 35℃,maintained 10 min,and then risen to 220℃ with the rate of 20℃·min -1 ,and maintained 5 min. Results:Cyclohexane,ethyl acetate,methanol,methylene chloride and trichloromethane showed a good linear relationship within the range of 77. 590 1- 698. 310 9 μg·ml -1(r = 0. 999 7),102. 166 6- 919. 499 4 μg· ml -1(r = 0. 999 8),62. 744 7- 564. 703 2μg·ml -1(r = 0. 999 9),12. 011 2- 108. 101 1 μg·ml-1(r = 0. 999 6)and 1. 262 8-11. 365 6 μg·ml -1(r = 0. 999 6). The average recovery was 103. 9% ,103. 5% ,104. 9% ,107. 1% and 103. 4% and RSD was 2. 3% ,2. 6% ,3. 1% ,2. 8% and 4. 5%(n = 9),respectively. The five residual solvents were not detected out in rupatadine fumarate. Conclusion:The method is stable,simple,sensitive and accurate,and can be used for the determination of residual solvents in rupatadine fumarate.
2.Preparation and Characteristics of Self-Emulsifying Drug Delivery System of Total Ginkgo Flavonoid
Xiangru LIAO ; Qiongzhi SHI ; Song FANG ; Ying CHEN
China Pharmacist 2016;19(5):850-853
Objective:To prepare total ginkgo flavonoid self-emulsifying drug delivery system(TGF-SMDDS)and estimate its char-acteristics in vitro. Methods:The formula of TGF-SMDDS was optimized based on the solubility tests,formula compatibility and microe-mulsion area in the pseudo ternary phase diagram. The appearance,morphology,particle size,zeta potential and in vitro dissolution of TGF-SMDDS were investigated. Results:The formula was composed of oleoyl macrogolglycerides as the oil phase,Tween-80 as the sur-factant and XCF as the co-surfactant. The ratio of oil phase,surfactant and co-surfactant was 10 ∶ 6 ∶ 4. The drug loading was 10. 0 mg· g -1 . After mixed with water,TGF-SMDDS was formed a clear and transparent microemulsion with homogeneous small spheres as seen un-der a transmission electron microscope. The particle size and zeta potential of TGF-SMDDS was(87. 4 ±26. 7)nm and( -13. 1 ±1. 5) mV,respectively. The accumulative dissolution of TGF-SMDDS in pH1. 2 hydrochloric acid solution was(96. 1 ±4. 8)% in 45 min. Con-clusion:The TGF-SMDDS can significantly enhance the dissolution of TGF in vitro,which may be a potential effective preparation for TGF.
3.Determination of Total Ginkgo Flavonoid in Self-emulsifying Drug Delivery System by HPLC
Xiangru LIAO ; Song FANG ; Qiongzhi SHI ; Ying CHEN
China Pharmacist 2016;19(4):764-766
Objective:To develop an HPLC method for determining the total ginkgo flavonoid in self-emulsifying drug delivery sys-tem. Methods:Effective chromatographic separation was achieved using a phenomenex C18 column (250 mm × 4. 6 mm, 5 μm) with a mobile phase composed of methanol and water (0.4% phosphoric acid) with the ratio of 50 ∶50 (v/v). The mobile phase was pumped using an isocratic HPLC system at a flow rate of 1. 0 ml·min-1 , the detection wavelength was 360 nm and the column temper-ature was 30 ℃. Results:The three components in the total ginkgo flavonoid were well separated by the proposed method. The linear relationship between the peak area and the concentration was promising within the range of 2. 0-40. 0 μg·ml-1 for quercetin, 3. 0-60. 0 μg·ml-1 for kaempferide and 2. 0-40. 0 μg·ml-1 for isorhamnetin. The mean recovery of quercetin, kaempferide and isorham-netin was 98. 4%, 99. 7% and 100. 5% with RSD of 0. 92%,0. 62% and 1. 24% (n=9), respectively. Conclusion:The method is specific and stable in the determination of total ginkgo flavonoid in self-emulsifying drug delivery system.
4.Significance of C-reaction protein for differential diagnosis of fever after chemotherapy on children with acute lymphoblastic leukemia.
Cheng-qing FANG ; Yong-min TANG ; Hai-feng LI ; Hua SONG ; Shu-wen SHI ; Shi-long YANG ; Wei-quan XU
Chinese Journal of Pediatrics 2004;42(7):536-537
Antimetabolites, Antineoplastic
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adverse effects
;
therapeutic use
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C-Reactive Protein
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analysis
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Child
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Child, Preschool
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Cytarabine
;
adverse effects
;
therapeutic use
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Diagnosis, Differential
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Female
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Fever
;
blood
;
chemically induced
;
diagnosis
;
Humans
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Infant
;
Male
;
Precursor Cell Lymphoblastic Leukemia-Lymphoma
;
blood
;
drug therapy
;
Teniposide
;
therapeutic use
5.Integrated DNA barcoding database for identifying Chinese animal medicine.
Lin-Chun SHI ; Hui YAO ; Li-Fang XIE ; Ying-Jie ZHU ; Jing-Yuan SONG ; Hui ZHANG ; Shi-Lin CHEN
China Journal of Chinese Materia Medica 2014;39(12):2155-2159
In order to construct an integrated DNA barcoding database for identifying Chinese animal medicine, the authors and their cooperators have completed a lot of researches for identifying Chinese animal medicines using DNA barcoding technology. Sequences from GenBank have been analyzed simultaneously. Three different methods, BLAST, barcoding gap and Tree building, have been used to confirm the reliabilities of barcode records in the database. The integrated DNA barcoding database for identifying Chinese animal medicine has been constructed using three different parts: specimen, sequence and literature information. This database contained about 800 animal medicines and the adulterants and closely related species. Unknown specimens can be identified by pasting their sequence record into the window on the ID page of species identification system for traditional Chinese medicine (www. tcmbarcode. cn). The integrated DNA barcoding database for identifying Chinese animal medicine is significantly important for animal species identification, rare and endangered species conservation and sustainable utilization of animal resources.
Animals
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DNA Barcoding, Taxonomic
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methods
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Databases, Nucleic Acid
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Eukaryota
;
classification
;
genetics
;
Medicine, Chinese Traditional
6.Perioperative management for living-related kidney donors
Qi-Zhe SONG ; Long-Gen XIU ; Shi-Fang SHI ; Zhou-Jun SHEN ; Hong Xin WANG
Journal of Clinical Urology 2000;15(10):445-446
Purpose:To clarify the perioperative management for living-related kidney donors. Methods:Thepre, mid, and postoperative clinical manifestations of 5 living related donors were analyzed retrospectively. Re-sults:5 living-related kidney donors were dismissed 15 days after the operations on average. Following up for 3~10 months, their postoperative blood routine, urine routine, hepatic function, renal function, the amount oturine protein in 24 hours were all within normal range. Conclusions:The safety of operation for living-related kid-ney donors is high and the donors can recover well.
8.Determination of five pyrethroid pesticides residues in Anoectochilus roxburghii by cloud point extraction-back extraction and GC-MS.
Hong-Bo LIU ; Xiao-Fang ZHAO ; Gui-Ying SHI ; Qing-Song SHAO ; Mine-Van LI
China Journal of Chinese Materia Medica 2014;39(15):2859-2862
A method for residual determination of 5 pyrethroid pesticides in Anoectochilus roxburghii by cloud point extraction-back extraction-GC-MS was established. PEG 6000 was used as extraction agent and isooctane was used for back-extractant. The con- tent was calculated by external standard method. The linear range was from 15 to 2 000 μg x kg(-1) with the good correlation coefficients (0.955-0.999). The recoveries at spiked concentrations of 50-500 μg x kg(-1) ranged from 85.12% to 101.6%. The limit of detection and quantification of 5 pyrethroid pesticides were in the range of 0.63-3.10 μg x kg(-1) and 2.10-10.31 μg x kg(-1), respectively. The proposed method can be applied to the determination of pyrethroid pesticides residues in A. roxburghii.
Chemical Fractionation
;
methods
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Gas Chromatography-Mass Spectrometry
;
methods
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Orchidaceae
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chemistry
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Pesticide Residues
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analysis
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chemistry
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isolation & purification
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Pyrethrins
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analysis
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chemistry
;
isolation & purification
10.Effects of different first dose calcium tetrahydro-folate on toxicity and side effects of large dose methotrexate treated standard risk group children with acute lymphoblastic leukemia.
Cheng-qing FANG ; Wei-qun XU ; Yong-min TANG ; Hua SONG ; Shuweng SHI ; Shilong YANG
Chinese Journal of Pediatrics 2004;42(5):392-393
Adolescent
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Antimetabolites, Antineoplastic
;
adverse effects
;
therapeutic use
;
Child
;
Child, Preschool
;
Drug Interactions
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Drug Therapy, Combination
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Female
;
Humans
;
Male
;
Methotrexate
;
adverse effects
;
therapeutic use
;
Precursor Cell Lymphoblastic Leukemia-Lymphoma
;
drug therapy
;
Sex Factors
;
Tetrahydrofolates
;
administration & dosage
;
therapeutic use
;
Treatment Outcome